Note that the observed interaction effects can also be studied experimentally by creating a corrugated asymmetric channel by microprinting on a substrate and measuring the drift velocity of the interacting particles [1]}.
These particles can be fabricated from luminescent polystyrene with well defined identical diameters [2]}.
In order to have an estimate in real units, which is very useful for the experimentalists, the characteristic values of the main parameters for the overdamped interacting Brownian particles in water moving in a corrugated asymmetric channel with asymmetric parameter \(\Delta = 1\)  and period length \(L \sim 1 ~\mu \mathrm {m}\) , and the temperature set at room temperature (\(T \sim 300 ~ \mathrm {K}\) ) are given by \(\eta \sim 2 \times 10^{-9} ~ \mathrm {kg/s}\)  [3]}, \(\tau \sim 0.15~ \mathrm {s}\) , \(k_B T_R/L \sim 10^{-14}~\mathrm {N}\) , and \(L/\tau \sim 6.67~ \mu \mathrm {m/s}\) .
For the parameters \(F_0 \sim 2.5 \times 10^{-14} ~\mathrm {N}\) , \(\omega \sim 0.07 ~ \mathrm {s^{-1}}\) , and \( K \sim 4 \times 10^{-13} ~\mathrm {N}\) , the interacting particles drift in the positive direction with an average velocity \(V \sim 0.25 ~ \mu \mathrm {m/s}\) , which is approximately \(3.1\)  times higher with respect to no interaction case.
The characteristic critical frequency in the real unit is given by \(\omega _c \sim 9.33 ~\mathrm {s^{-1}}\)  below which the interacting particles greatly enhance the average velocity in the positive direction, whereas above this critical value it is greatly enhanced in the negative direction.
It is expected that the enhanced rectification can be used for the efficient and selective continuous separation of particles mixture based on their physical properties like mass, size, shape, etc. [4]}, [5]}, [6]}.
Also, it may have high relevance in describing transport in mesoscopic systems [7]}, [8]} and controlled drug release [9]}.
